Blanton Lake South Lobe
Pasco County, FloridaHypereutrophic
Blanton Lake South Lobe is a highly nutrient-loaded hypereutrophic lake in Pasco County, Florida. Water quality is graded F based on 2 sampling years through 2025. Compared to the 53 other monitored lakes in Pasco County, Blanton Lake South Lobe ranks #53 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-04-03. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 2 ft of visibility. Phosphorus level: 140 µg/L. Trophic State Index: 71.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | F |
| Phosphorus | 140 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 71 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Location
County Ranking
Ranked #53 of 54 lakes in Pasco County
Cleaner Lakes Within 30 Miles
Blanton Lake South Lobe holds Grade F. 3 nearby lakes hold higher grades.
- BPasco-Jovita LakePasco County · 3.9 mi · Two grade letters higher (F → B)
- DLake DowlingPasco County · 2.8 mi · Higher grade (F → D)
- DMoody LakePasco County · 3.1 mi · Higher grade (F → D)
Nearby Lakes in Pasco County
More Florida Lake Rankings
Other Grade F Lakes in Florida
Hypereutrophic Lakes in Florida
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-04-03
Monitoring stations: 1
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